lidar

or LI·DAR

[ lahy-dahr ]
/ ˈlaɪ dɑr /
|

noun Electronics, Optics.

a device similar to radar in principle and operation but using infrared laser light instead of radio waves and capable of detecting particles, distant objects, and varying physical conditions in the atmosphere.

Origin of lidar

1960–65; li(ght1) + (ra)dar
Also called laser radar.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for lidar

Science definitions for lidar

lidar

[ līdär ]

A method of detecting distant objects and determining their position, velocity, or other characteristics by analysis of pulsed laser light reflected from their surfaces. Lidar operates on the same principles as radar and sonar.
The equipment used in such detection. See also Doppler effect radar sonar.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.